Mergers and Acquisitions: such as during company mergers, there's a high probability of overlapping information, leading to duplicate customer IDs, product codes, or financial transactions.
Data Collection Methods: Certain data collection methodologies sri lanka phone number list can inherently generate duplicates. For example, if a survey allows multiple submissions from the same individual, or if sensor readings are intermittently re-sent, duplicates will naturally occur.
Lack of Unique Identifiers: In the absence of a robust primary key or unique identifier field, systems may struggle to differentiate between distinct entities, leading to the creation of duplicate records based on non-unique attributes.3
Intentional Duplication (Rare but Possible): In some niche scenarios, duplicates might be intentionally introduced for testing purposes or to represent multiple instances of the same item (e.g., tracking individual units of a product with the same serial number, though this usually involves additional differentiating attributes).
Understanding the origin of duplicates is crucial for implementing preventative measures and developing effective remediation strategies.